Barn



'A. F. McGIRR.

BARN.

APPLICATION FILED NOV 10, 1916.

1,33 ,47 Patented Apr. 13, 1920.'

2 SHEETS-SHEET l- Mmrssas I jun/. 01

A. F. MCGIRH.

BARN.

APPLICATION FILED NOV=10,19l6.

Q Patented Apr. 13, 1920.

2 SHEETS-SHEET 2.

ALEXANDER FINDLY MGGIRR, OF METCALFE, ONTARIO, CANADA.

BARN.

Application filed November 10. 1916.

To all whom it may concern Be it known that L' Anuxannnn FINDLY MoGnzn. a subject of the King of Great Britain and resident of Metcalfe, in the Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Barns, of which the follow ing is a specification.

This invention relates to improvements in barns and the objects of the invention are to eliminate all transversely and longitudinally extending beams which may 1naterially affect the capacity of the barn, to permit of the walls of the barn being adequately strengthened so that they may resist the internal pressure due to produce stored in the barn and at the same time permit of the structure adequately withstanding wind pressure. Further objects are to permit of the joints of the sections of the rafters being suitably secured together so that strength and durability together with the desired resiliency may be given thereto and generally to adapt the several parts to better perform the functions required of them.

W ith the above and other objects in View the invention consists essentially of the in proved construction particularly described and set forth in the following specification and accompanying drawings forming part of the same.

In the drawings,

Figure 1 is a transverse section of the int proved barn.

Fig. 2 is a f 'agmentary longitudinal sectional elevation of the same.

Fig. is a fragmentary side elevation of the trusses showing the means of supporting the purlin plates therefrom.

Fig. i is a side eleration of a truss designed to strengthen the purlin plates.

Fig. 5 is a plan View of the brace located at the corners of the barn.

Like characters of reference refer to like parts in the several figures.

Referring to the drawings A represents the improved barn comprising the foundation B which may be made of concrete or the like on which the frame C is built. The frame G consists of a plurality of uprights 10 located at the corners of the barn and intermediate of the length and ends thereof, being operatively connected by the longitudinally extending braces 11 to which the clap board or the like is secured. These Specification of Letters Patent.

Patented Apr. 13, 1920.

Serial No. 130,634.

walls are strengthened by a plurality of trusses D equidistantly spaced from each other and secured to the several uprights 10 in a manner to be made clear hereafter.

The uprights 10 are operatively connected at their upper end by a wall plate 1') adapted to carry the rafters which are formed in two sections 13 and it, the former of which is notched as shown at 15 so that it may intimately engage with the said wall plate.

Any tendency of the section 1?) of the rafters falling inwardly is provided for by means of the trusses D each of which (-(nnprises a vertical member 15* inclined slightly at the top toward the uprights 10, the lower end being connected by the plate 16 to the joist 17, while the upper end is connected by the angularly disposed strut 18 to the plate 19 which is rigidly connected to the said upright. The lower portion of the truss frame is completed by the angularly disposed struts 20, arranged in zig-zag formation across the frame and operatively connected at the ends to the upright 10 and the member 15 respectively.

The upper end of the truss frame D is completed by a pair of vertically extending and angular-1y disposed members 21 and 2 which converge toward the top and are suitably secured to the plate 23.

The upper end of the member 22 is provided with a resilient adjustable wedge shaped piece 2- suitably secured thereto and adapted to engage with the purlin plate 25 extending longitudinally of the barn and supporting the upper end of the lower sections 13 of the rafters. The wedge piece 24: is of skeleton formation so that the desired resiliency is obtained and consequently a slight yield is given to the purlin plates 25 when stress is exerted thereon. By using his wedge piece any sag can be taken up and there is less liability of collapse of the roof of the barn than is otherwise likely to take place. if the purlin plates 25 were rigidly at tached to the struts D and excessive pressure brought to bear upon the same.

The adjacent ends of the upper sections of the rafter are butt joined and secured by the frames 26 which are substantially diamond shaped and suitably secured in position by bolts, the lateral members of the said frame embracing a substantially U-shaped member 27 which is designed to act as a strut giving rigidity to the frame, and at the same time permitting of the desired resiliency so that a certain yield will he obtained and there is no liability of the roof becoming excessively strained.

The purlin plates 25 are adequately strengthened by longitudinally extending trusses 28 which are operatively supported by the upperend of the truss frame D. The trusses 28 consist of a substantially straight member 29 coacting with the purlin plates 25 and operatively connected to a member 30, the center portion of which is substantially parallel to the member 29 but with its ends offset, the said members embracing a substantially W-shaped strut member 31 designed to rigidity and desired resili ency to the said truss.

The ends of the barn are suitably strengthened by the truss frame E located intermediate of the breadth thereof and consisting of vertical disposed members 32 inclined inwardly at the top toward the end of the barn and being operatively connected bv the angularly disposed members 33 to the wall plate 12, the frame being completed by a plurality of angularly' disposed truss members 34: arranged in zig-zag forms and operatively secured to the member 32 and the upright 10.

The truss :28 is operatively connected by the sway rods 35 to the wall plate 12. The corners of the barn are suitably strengthened by angular-1y disposed braces 36 which are secured to the side and end walls of the barn by any suitable means. The purlins 37 are secured to the outer face of the sections 13 and 14 of the rafters when the clap board or like roofing of the barn may be se- Y cured in position.

From the foregoing description it will be readily appreciated that a barnconstructed in this manner will have the desired strength to carry producestored therein, and at the same time to withstand the external wind or like pressure, while by the arrangement of the several trusses, transverse and longitudinally eXtending beams are entirely dispensed with so that capacity of the barn is a maximum.

above construction, and many apparently widely different embodiments of my invention, within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specifi-' cation and drawings shall be interpreted as illustrative and not in a limiting sense.

iVhat I claim as my invention is:

In a structure of the class described, a joist, an upright at the end thereof, a rafter supported by said upright, a vertical member connected to the joist and spaced from the said upright, diagonal strutsconnecting As many changes could be made in the 

